Craden Peripherals DP8 Enhanced Diagnostics, Self Test, Local Printing, Cover Open, Overflow

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3.6.2 Enhanced Diagnostics

Diagnostics execute after pressing 9 0 FUNCT. If no faults exist, PROM REVISION XX, ROM TEST OK and RAM TEST OK will display. If a fault exists, "BAD" will display until Ais pressed to advance to the next test. Then SENSORS LFBMRCE will display. L is the left home carriage sensor; F and B are the front and back document sensors, M and R are the middle and right skew sensors, C is the cabinet open sensor and E is the document edge sensor. Any sensor that is covered will have its corresponding indicator extinguished. Each sensor may be activated to check for proper operation. Both operator indicator lights will turn on (DP9). Press Ato conclude this test.

3.7Self Test

Insert paper and press 9 0 0 FUNCT to print model, firmware ID and configuration settings.

3.8Local Printing

To print several variable length lines without host commands. Proceed as follows:

1.Insert a form and then press 9 5 FUNCT.

2.In response to CHAR LENGTH = 30, key in a two digit number of characters per line and then press ENTER. Do not print occur across a vertical fold or document edge.

3.In response to LINE COUNT = 01, key in a 2 digit number of lines.

4.Each time ENTER is pressed, that number of lines will be printed.

5.Press EJECT to eject the document and CLEAR to clear the display.

3.9Error Conditions

3.9.1Document Jam

In the unlikely event that a document becomes jammed in the printer, printing will stop and "DOCUMENT JAM" will be displayed. The operator must clear the jam condition by moving the printhead left as far as possible and removing the document from the printer.

3.9.2Cover Open

If the cabinet is opened to replace a ribbon cartridge or clear a document jam, COVER OPEN is displayed and printing is disabled. Printing will resume 3 seconds after the cabinet is closed.

3.9.3Page Overflow

If the printer is commanded to move past the last printable line on a document it will eject the document and display PAGE OVERFLOW INSERT NEXT PAGE. Printing will resume when another document is inserted.

3.9.4Carriage Fault

The carriage could not move to the left margin and is probably caused by a jammed carriage or a bad left home sensor.

3.9.5Clear Eject Jam

At power up or when an eject command is executed and all document sensors do not uncover, “CLEAR EJECT JAM” will be displayed. Assure no document is covering the sensors and the sensors are clean. Turn power off before manually removing a jammed document. If no document is in the printer, this condition may be cleared by pressing the ENTER key while powering the printer on. If the condition will not clear there may be a sensor failure.

3.9.6Narrow Document

When a document less than 2.4” wide is inserted the middle sensor does not “see” it. NARROW DOCUMENT” is displayed. Press ENTER to proceed or EJECT to abort.

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Contents Airport HIGHWAY, PENNSAUKEN, NJ R I P H E R a L S R P O R a T I O NRevision ALL Record of ChangesPages Affected DP8 & DP9 Technical Manual Table of Contents OperationMaintenance Theory of OperationMajor Assembly Illustrations & Parts Lists TroubleshootingRecommended Spare Parts Recommended Service Tools Interface Document CharacteristicsPhysical Characteristics Environment & StandardsInstallation Procedure Reshipment Operation Ribbon Cartridge LoadingKeypad & Display Panel Keypad OperationDisplay Operation Document Insertion ConfigurationConfiguration Category Press Remarks Printer ParametersDisplay Display Remarks Communication ParametersOverride Parameters Service Parameters Diagnostics Power Up DiagnosticsCarriage Fault Enhanced DiagnosticsError Conditions Document Jam Self TestProgramming Command SummaryHex Command AsciiESC L ESC HESC K ESC RPrint Commands Stops double height print Display Commands Low Density Graphics CommandsHigh Density Graphics Commands DC3DP XE DJ KB BZ BA Configuration CommandsStatus and Keypad Commands Meaning Installing Craden Drivers on Windows 95 orAscii DriversUsing Printer Resident Device Fonts Installing Craden Drivers on Windows NT, 2000 or XPInstalling Craden USB Drivers on Windows NT, 2000 or XP Funct Writing to the Printer LCD DisplayInterfacing Input Buffer OperationPrinter Pin PC-25 Pin PC-9 Pin Signal Interface Signals & CablesPin Signal Description Problem SolvingNo Document Motion Carriage Fault or No Carriage MotionRollers Run at Power-Up or After Document Ejected No Printing or Light PrintingSwitching Power Supply Carriage Drive AssemblyDocument Drive Assembly Theory of Operation OverviewMicroprocessor System Keypad/Display AssemblyMain Printed Circuit Board Stepper Motor DriversPhase a I0A I1A Phase B I0B I1B Current Stepper Motor Drive Circuit U20 15 aSensors Keypad and Display Refer to Schematic #72135Printhead Drivers Character PrintingI L Printhead Drive CircuitDocument Feed Roller Cleaning MaintenanceLubrication and Cleaning 5.1.1 Lubrication Sensor CleaningCabinet Exterior Cleaning Printhead CleaningDocument Print Area Cleaning Harsh, abrasive cleanersService Parameter SET-UP Procedure Electrical AdjustmentsMechanical Adjustments 5.4.1 Printhead Gap Ribbon Shield Removal / Replacement Ribbon Shield Face Inspection Carriage Shaft Cam and Shaft Rack Carriage Drive Belt TensionDocument Drive Belt Tension Rear Document Roller Spring ForceAuto Alignment Gate Ramp Auto Alignment Gate HeightAuto Alignment Skew Sensor Calibration Replacement ProceduresFront Document Roller Spring Force CabinetKeypad Power Supply PCBSensor PCB DisplayCarriage Drive Belt Document MotorPrinthead Document Drive BeltNo Display TroubleshootingBasic Troubleshooting Procedure Defective KeypadNo Carriage Motion Defective SensorNo Document Motion Print Quality Symptom Condition RemedyNo Print or Light Print Erratic Character Spacing or False Document Jams Missing DotsErratic Document Feed or Mispositioning Interface InoperativeDiagnostic Flowchart Use this flow chart to assist in troubleshootingDescription PART# Recommended Service ToolsRecommended Spare Parts Printer Diagram All assemblies not ending in X are used both on DP8 and DP9 DP8 & DP9 Assembly TreeDWG REV. C Page Page Page Page Page Page Page